I recomend 40:1 with good quality oil.
http://store.chainsawr.com/
50/1
40:1
The fuel ratio for a Stihl MS250 chainsaw is typically 50:1, which means 50 parts gasoline to 1 part oil. It's important to use a high-quality two-cycle engine oil that is specifically designed for outdoor power equipment. Always follow the manufacturer's recommendations for the fuel mixture to ensure proper engine lubrication and performance.
50 to 1 2.6 oz oil to 1 gal. gas
Need to know the fuel oil mix for craftsman chainsaw Model #917.353736.
what is the fuel/oil mixture for a stil chainsaw model 1629
The fuel mixture for a Stihl chain saw is gas and oil.
40:1 with high quality 2-stroke oil mix would be fine. http://store.chainsawr.com/
1 gal gas + 2cycle engine oil
It could be a large number of reasons. Usually the fuel system is the 1st to check, in the case of the symptom you describe. http://store.chainsawr.com/
I use 40:1 mixed with high quality 2-stroke oil. I have used this mix in 1000s of chainsaws without any problem. http://store.chainsawr.com/
The Stihl 028 series number is 1118. It has an aluminum-and-chrome-plated bore, intake by piston pore and weighs in at 6.3kg with a 33cm bar and chain. It also has anti-vibration, the oil pump is automatic, and the engine has an RPM of 12,500, an idle RPM of 2,700, with a fuel tank capacity of 520ml.